@article{GDZPPN002065762, title = {A non-immersion theorem for hyperbolic manifolds.}, journal = {Commentarii mathematici Helvetici}, volume = {60}, year = {1985}, pages = {280-283}, zbl = {0566.53045}, url = {http://dml.mathdoc.fr/item/GDZPPN002065762} }
Xavier, Frederico. A non-immersion theorem for hyperbolic manifolds.. Commentarii mathematici Helvetici, Tome 60 (1985) pp. 280-283. http://gdmltest.u-ga.fr/item/GDZPPN002065762/